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http://krishi.icar.gov.in/jspui/handle/123456789/1505
Title: | Phenotyping bananas for drought resistance |
Other Titles: | Not Available |
Authors: | Ravi I, Uma S, MayilVaganan M and Mustaffa M.M |
Published/ Complete Date: | 2012-08-20 |
Keywords: | bananas, breeding, bunch yield, drought stress, phenotype, RWC |
Publisher: | frontiers |
Citation: | 19 |
Abstract/Description: | Drought has emerged as one of the major constraints in banana production. Its effectsare pronounced substantially in the tropics and sub-tropics of the world due to climatechange. Bananas are quite sensitive to drought; however, genotypes with “B” genomeare more tolerant to abiotic stresses than those solely based on “A” genome. In particular,bananas with “ABB” genomes are more tolerant to drought and other abiotic stressesthan other genotypes. A good phenotyping plan is a prerequisite for any improvementprogram for targeted traits. In the present article, known drought tolerant traits of othercrop plants are validated in bananas with diff erent genomic backgrounds and presented.Since, banana is recalcitrant to breeding, strategies for making hybrids between differentgenomic backgrounds are also discussed. Stomatal conductance, cell membrane stability(CMS), leaf emergence rate, rate of leaf senescence, RWC, and bunch yield under soilmoisture deficit stress are some of the traits associated with drought tolerance. Amongthese stress bunch yield under drought should be given top priority for phenotyping. Inthe light of recently released Musa genome draf t sequence, the molecular breeders mayhave interest in deve loping molecular markers for drought resistance. |
Description: | Bananas (refers to banana, plantain, and cooking bananas) are one of the earliest crop plants to have been domesticated. Originally, they were adapted from the humid tropics to broad subtropical climatic conditions. Bananas are one of the most important, but undervalued, food crops in the world. Bananas provide a staple food for millions of people; particularly plantains have remained a staple food of many ethnic groups in Africa, an area where the green revolution has had little influence. Bananas are considered an important food security crop, providing a cheap and easily produced source of energy. In addition, they are rich in certain minerals and in vitamins A, C, and B6. It has been estimated that the highest consumption rates are on the island of New Guinea and in the Great Lakes region of East Africa, where bananas form a large proportion of the diet and consumption amounts to 200–250 kg person−1 year−1 whereas in Europe and North America consumption is approximately 15–16 kg person−1 year−1 (INIBAP, 1992). Bananas are consumed in various forms, and consumption methods have evolved and been refined by humans over time. They are eaten raw, cooked, baked, steamed, or fermented. In many places, the whole plant is exploited with uses for the leaves, pseudostem, medicinally rich plant sap or fiber. |
Type(s) of content: | Research Paper |
Language: | English |
Name of Journal: | Frontiers in Physiology |
NAAS Rating: | 9.37 |
Volume No.: | 4 |
Page Number: | 1-15 |
Name of the Division/Regional Station: | Horticulture |
Source, DOI or any other URL: | http://journal.frontiersin.org/article/10.3389/fphys.2013.00009/full |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/1505 |
Appears in Collections: | HS-NRCB-Publication |
Files in This Item:
File | Description | Size | Format | |
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fphys-04-00009.pdf | 1.95 MB | Adobe PDF | View/Open |
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